X0303 5 2008-12-31 0 0 1 0001030749 GULFMARK OFFSHORE INC GLF 0001286202 MASHINSKI CARLA S X1 0 1 0 0 CAO Phantom Stock 2006-05-15 4 P 0 L 59.679 25.92 A Common Stock 59.679 3632.762 D Phantom Stock 2006-05-31 4 P 0 L 61.482 25.16 A Common Stock 61.482 3694.243 D Phantom Stock 2006-06-08 4 P 0 L 1296.862 25.18 A Common Stock 1296.862 4991.106 D Phantom Stock 2006-06-08 4 P 0 L 30.072 25.18 A Common Stock 30.072 5021.178 D Phantom Stock 2006-06-15 4 P 0 L 67.802 25.58 A Common Stock 67.802 5088.980 D Phantom Stock 2006-06-30 4 P 0 L 56.257 25.83 A Common Stock 56.257 5145.237 D Phantom Stock 2006-07-15 4 P 0 L 65.815 25.64 A Common Stock 65.815 5211.052 D Phantom Stock 2006-07-31 4 P 0 L 53.233 31.7 A Common Stock 53.233 5264.286 D Phantom Stock 2006-08-15 4 P 0 L 53.267 31.68 A Common Stock 53.267 5317.553 D Phantom Stock 2006-08-31 4 P 0 L 55.601 30.35 A Common Stock 55.601 5373.154 D Phantom Stock 2006-09-15 4 P 0 L 57.712 29.24 A Common Stock 57.712 5430.866 D Phantom Stock 2006-09-30 4 P 0 L 52.999 31.84 A Common Stock 52.999 5483.865 D Phantom Stock 2006-10-15 4 P 0 L 51.370 32.85 A Common Stock 51.370 5535.235 D Phantom Stock 2006-10-31 4 P 0 L 48.871 34.53 A Common Stock 48.871 5584.106 D Phantom Stock 2006-11-15 4 P 0 L 44.396 38.01 A Common Stock 44.396 5628.502 D Phantom Stock 2006-11-30 4 P 0 L 41.905 40.27 A Common Stock 41.905 5670.407 D Phantom Stock 2006-12-15 4 P 0 L 43.831 38.5 A Common Stock 43.831 5714.238 D Phantom Stock 2006-12-31 4 P 0 L 45.108 37.41 A Common Stock 45.108 5759.346 D Phantom Stock 2007-01-15 4 P 0 L 50.254 33.58 A Common Stock 50.254 5809.600 D Phantom Stock 2007-01-31 4 P 0 L 46.732 36.11 A Common Stock 46.732 5856.332 D Phantom Stock 2007-02-15 4 P 0 L 45.768 36.87 A Common Stock 45.768 5902.100 D Phantom Stock 2007-02-28 4 P 0 L 42.656 39.56 A Common Stock 42.656 5944.756 D Phantom Stock 2007-03-15 4 P 0 L 40.672 41.49 A Common Stock 40.672 5985.428 D Phantom Stock 2007-03-31 4 P 0 L 38.662 43.65 A Common Stock 38.662 6024.090 D Phantom Stock 2007-04-15 4 P 0 L 35.928 46.97 A Common Stock 35.928 6060.018 D On reviewing the Section 16 reporting requirements relating to GulfMark Offshore, Inc.'s Executive Nonqualified Excess Plan, it was determined that the phantom stock units created by the deferral of compensation by both officers and directors should have been reported as a derivative security by the officer/director once the phantom stock unit was allocated to his account. This filing reports all transactions related to the phantom stock units in the plan allocated to the individual from his point of entry into the plan through March 31, 2009. Each phantom stock unit is the economic equivalent of one share of common stock. Subject to the provisions of the plan, the phantom stock units become payable only in common stock upon the officer/director's termination of service." /s/ Carla S. Mashinski 2009-04-16